Disk cutter attachment for corn-planters.



No. 710,2". Patented Sept. 30, I902.

'H..RENTSCH. I

DISK CUTTER ATTACHMENT FORCOBN PLANTEBS.

(Application fild Jun'e s, 1902. (No Model.) 2 Sheets-Sheet I.

WW $0M MUM 19 a y m M u W Patented Sept. 30, 1902.

H. BEN TSCH. DISK CUTTER ATTACHMENT FOR CORN PLANTERS.

(Application filed June 3, 1902.)

2 Sheets-sheet 2.

(No Model) T 2 I 7555;5555411514:: 7/ 5 VII/d 6 2 W m,

cm mpaw ms PETERS co PHO'TO-LIY UNITED STATES i FFICE.

ATENT HENRY RENTSCH, OF BACON, MISSOURI.

SPECIFICATION forming part of Letters Patent No. 710,211, datedSeptember 30, 1902.

Application filed June 3,1902. Serial No. 110,108. (No model.)

To all whom it may concern.-

Be it known that I, HENRY RENTSOH, a citizen of the United States,residing at Bacon, Missouri, have invented certain new and usefulImprovements in Disk OutterAttach- My object is to construct an improvedfurrow-opener for corn-planters and my invention consists of the novelfeatures herein shown, described, and claimed.

Figure 1 is a side elevation showing my irn proved furrow-opener inposition for use. Fig. 2 is a top plan view of the parts shown in Fig.1, the seedbox being omitted and the frame being broken away. Fig.3 is adetail cross-section, upon an enlarged scale, taken approximately on theline 3 3 of'Fig. 2.

Referring to the drawings in detail, the seedbox 5 is mounted upon theframe 6 and has a spout 7 leading to the heel of the runner orfurrow-opener 8 in the ordinary way. The cross-bar 9 connects theforward ends of the runners. The adjustable supporting-bar 18 has itsforward end 10 turned to a horizontal position and secured to thecross-bar 9 by the bolt 11. The rear end 12 of the supporting-bar haslongitudinally-extending slots 13, I

through which the bolts 14 are inserted, and the extension-plate 15 is,secured to the end 12 by said bolts 1-1, as required to adjust thelength of the supporting-bar, and the extension-plate haslongitudinally-extending slots 16 to receive the bolts 17 and secure theplate adjustably to the frame 6. The forward end 10 rests on top of thecross-bar 9, whereas the rear end 15 is mounted under the frame 6. Theobject of this arrangement is to provide a construction which may bereadily applied to the ordinary corn-planter, the bolts 11 and 17 beingalready in the planter.

The central .portion 18 of the supportingbaris wedge-shaped incross-section, as shown in Figs. 2 and'3, the base of the bar beingnarrower at the front end than at the rear end, as shown in Fig. 2. Alongitudinallyextending horizontal slot 19 is formed through thesupporting-bar, as shown in Figs. 1 and 3. Clamping-plates 20 are placedone on each side of the supporting-bar, and a bolt 21 is insertedthrough the slot 19 to hold the plates rigidly in position upon the bar.The upper edges of the clamping-plates are turned inwardly to form theflanges 22, which engage the upper edge of.the supporting-bar. The posts23 extend downwardly from the clamping-plates 20, there beingscrew-threads 24 upon the lower ends of said posts. The tubes 25 arescrew-seated upon the lower ends of the posts 23 and held adjustably inposition by means of the lock-nuts 26. Studs 27 extend laterally fromthe lower' ends of the tubes 25, and the disks 28 are rotatably mountedupon said studs.

The disks engage the ground in front of the runner, as shown in Figs. 1and 2, the for ward edges of the disks being comparatively closetogether and the rear edges wide apart. The relative angles of the disksmay be changed by rotating the tubes 25 upon the posts. The distancebetween the lower ends of the tubes 25 may be changed by moving theclamping-plates 20 back and forth upon the supporting-bar by Virtueofthe varying width of the lower side of the supporting-bar.

By means of the adjustable length of the supporting-bar the device maybe readily attached to corn-planters in which the distance between theframe 6 and cross-bar 9 varies.

I claim 1. The combination with a corn-planter, of a supporting-bar, twosupportingposts 23 fixed to and extending downwardly from saidsupporting-bar, tubes 25 revolubly mounted upon said posts, diskscarried by said tubes, and means whereby the latter may be adjusted atvarious angles upon the said posts, substantially as specified.

2. The combination with a corn-planter; of an adjustable supporting-bar; the central portion of which is wedge-shaped in cross-section, andnarrower at the top than at the bottom; clamping-platesadjustably-mounted upon the supporting -bar; posts extending downwardlyfrom the clamping-plates; and disks adj ustably mounted upon the posts;substantially as specified.

3. The combination with a corn-planter, of a supporting-bar, twosupporting-posts 23 fixed to and extending downwardly from said ICOsupporting-bar, and provided with screw- I In testimony whereof I affixmy signature threads, tubes 25 provided with internal in presence of twoWitnesses.

screw-threads and revolubly mounted upon said posts, locking-nuts 26 forsecuring said tubes against rotation upon said posts, and Witnesses:disks carred by the said tubes, substantially ALFRED A. EIGKS, asdescribed. M. G. IRION.

HENRY RENTSOH.

